Veritas File System 5.0 Administrator's Guide (September 2006)

To increase the capacity of a file system
1
Unmount the file system:
# umount /dev/vg00/lvol7
2
Extend the volume so that the volume can contain the larger file system:
# lvextend -L larger_size /dev/vg00/lvol7
3
Extend the file system:
# extendfs -F vxfs /dev/vg00/rlvol7
4
Mount the file system:
# mount -F vxfs /dev/vg00/lvol7 mount_point
Backing up and restoring a file system
To back up a VxFS file system, you first create a read-only snapshot file system,
then back up the snapshot. This procedure lets you keep the main file system on
line. The snapshot is a copy of the snapped file system that is frozen at the moment
the snapshot is created.
See the mount(1M), mount_vxfs(1M), vxdump(1M), and vxrestore(1M) manual
pages.
Creating and mounting a snapshot file system
The first step in backing up a VxFS file system is to create and mount a snapshot
file system.
To create and mount a snapshot of a VxFS file system
◆
Use the mount command to create and mount a snapshot of a VxFS file system:
mount [-F vxfs] -o snapof=source,[snapsize=size] \
destination snap_mount_point
The special device name or mount point of the file system to
copy.
source
The name of the special device on which to create the snapshot.destination
Quick Reference
Backing up and restoring a file system
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